New subfamilies of univalent functions defined by Opoola differential operator and connected with modified Sigmoid function

TO OPOOLA, EA OYEKAN… - Malaya Journal of …, 2023 - malayajournal.org
In this exploration, by making use of the Hadamard product of Opoola differential operator
and modified sigmoid function, we define new subclasses of analytical and univalent …

On a Certain Class of Bi-Univalent Functions in Connection with Gegenbauer Polynomials

RO Ayinla, AO Lasode - Pan-American Journal of Mathematics, 2024 - mathyze.com
Recent direction of studies shows that there is a kin connection between regular functions
and orthogonal polynomials. In this paper, we study a new class of regular and bi-univalent …